<template>
  <div class="app-container">

    <!-- 查询表单 -->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="searchObj.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="searchObj.level" placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="searchObj.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"/>
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="searchObj.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"/>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="fetchData()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>
    <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row>
      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1 ) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="名称" width="80"/>

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          {{ scope.row.level === 1 ? '高级讲师' : '首席讲师' }}
        </template>
      </el-table-column>

      <el-table-column prop="intro" label="资历"/>

      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

      <el-table-column prop="sort" label="排序" width="60"/>

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/edu/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <el-pagination
      :total="total"
      :current-page="page"
      :page-size="limit"
      layout="total, sizes, prev, pager, next, jumper"
      style="padding: 30px 0; text-align: center;"
      @current-change="fetchData"
    />
  </div>
</template>

<script>
import teacher from '@/api/edu/teacher'
export default {
    data() {
        return {
            // 是否显示loading信息
            listLoading: true,
            // 数据列表
            list: null,
            // 总记录数
            total: 0,
            // 页码
            page: 1,
            // 每页记录数
            limit: 10,
            // 查询条件
            searchObj: {}
        }
    },

    created() {
        this.fetchData()
    },

    methods: {
        fetchData(page = 1) {
            console.log('加载列表')
            this.page = page
            this.listLoading = true
            teacher.getPageList(this.page, this.limit, this.searchObj).then(response => {
                if (response.success === true) {
                    this.list = response.data.rows
                    this.total = response.data.total
                }
                this.listLoading = false
            })
        },

        resetData() {
            this.searchObj = {}
            this.fetchData()
        },

        removeDataById(id) {
          this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            return teacher.removeById(id)
          }).then(() => {
            this.fetchData()
            this.$message({
              type: 'success',
              message: '删除成功!'
            })
          }).catch((response) => {
            if (response === 'cancel') {
              this.$message({
                type: 'info',
                message: '已取消删除'
              })
            } else {
              this.$message({
                type: 'error',
                message: '删除失败'
              })
            }
          });
        }
    }
}
</script>
